/*
 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
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 *
 *
 *
 *
 *
 *
 *
 */

package com.sun.imageio.plugins.bmp;

import java.awt.image.DataBuffer;
import java.awt.image.SampleModel;
import java.awt.image.SinglePixelPackedSampleModel;

import javax.imageio.spi.ImageWriterSpi;
import javax.imageio.spi.ServiceRegistry;
import javax.imageio.spi.IIORegistry;
import javax.imageio.stream.ImageOutputStream;
import javax.imageio.ImageWriter;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.IIOException;
import java.util.Locale;

import javax.imageio.plugins.bmp.BMPImageWriteParam;

public class BMPImageWriterSpi extends ImageWriterSpi {

  private static String[] readerSpiNames =
      {"com.sun.imageio.plugins.bmp.BMPImageReaderSpi"};
  private static String[] formatNames = {"bmp", "BMP"};
  private static String[] entensions = {"bmp"};
  private static String[] mimeType = {"image/bmp"};

  private boolean registered = false;

  public BMPImageWriterSpi() {
    super("Oracle Corporation",
        "1.0",
        formatNames,
        entensions,
        mimeType,
        "com.sun.imageio.plugins.bmp.BMPImageWriter",
        new Class[]{ImageOutputStream.class},
        readerSpiNames,
        false,
        null, null, null, null,
        true,
        BMPMetadata.nativeMetadataFormatName,
        "com.sun.imageio.plugins.bmp.BMPMetadataFormat",
        null, null);
  }

  public String getDescription(Locale locale) {
    return "Standard BMP Image Writer";
  }

  public void onRegistration(ServiceRegistry registry,
      Class<?> category) {
    if (registered) {
      return;
    }

    registered = true;
  }

  public boolean canEncodeImage(ImageTypeSpecifier type) {
    int dataType = type.getSampleModel().getDataType();
    if (dataType < DataBuffer.TYPE_BYTE || dataType > DataBuffer.TYPE_INT) {
      return false;
    }

    SampleModel sm = type.getSampleModel();
    int numBands = sm.getNumBands();
    if (!(numBands == 1 || numBands == 3)) {
      return false;
    }

    if (numBands == 1 && dataType != DataBuffer.TYPE_BYTE) {
      return false;
    }

    if (dataType > DataBuffer.TYPE_BYTE &&
        !(sm instanceof SinglePixelPackedSampleModel)) {
      return false;
    }

    return true;
  }

  public ImageWriter createWriterInstance(Object extension)
      throws IIOException {
    return new BMPImageWriter(this);
  }
}
